Vacuum cleaner



Me 30,1936.- 7 W, LEATHER 2,046,112

VACUUM CLEANER Original Filed Aug. 26, 1930 INVENTORIV MHZ I PatentedJune 30, 1936 VACUUM CLEANER Ward Leathers, Haworth, N.

' J assignor, by

mesne assignments, to Quadrex Corporation, a corporation of DelawareApplication August 26, 1930, Serial No. 477,832 Renewed May 15, 1935 5Claims. (Cl. 183-36) I My present invention relates to improvements invacuum cleaners which accomplish particularly the more efiicientcollection and easier removal of the dirt picked up by the cleaner.

The invention comprises a novel construction including novelinterrelations between the filter, the detachable dirt receptacle andthe dirt laden air conduit to the filter, and other elements includingthe operating handle.

The accompanying drawing shows a preferred form of my improvementsillustrative of the invention but without intending to limit theinvention to said form or to the details thereof, except as required bythe appended claims.

In the drawing:

Fig. 1 is a side elevation of a vacuum cleaner embodying my hereinimprovements, the middle portion of the filter and handle being omittedas superfious in order to save space, and the upper part of the filterand handle being shown partly in vertical section.

Fig. 2 is a fragmentary view consisting'of the lower portion of thevacuum cleaner of Fig. l and shows the dirt receptacle broken oil toreveal its cross sectional shape and its relation to the likewise brokenoff combined dirt-laden air conduit and handle.

Referring to the drawing, I is the motor-housing, and 2 is thefan-housing. A casing 4 preferably of sheet metal is united to theaforesaid housings, and constitutes a suction mouth piece connected withthe fan-housing which in turn connects with the hollow air duct and atubular handle 29 and delivers the dirt laden air into and up throughsaid duct. and handle.

- The articulation between the rigid bracket l2 and the hollow bracketI0 is shown at 21. The hollow bracket I0 communicates with the hollowpart I I which at 28 is joined to and communicates with the hollowhandle member 29, preferably of hard fibre preferably about 1 indiameter. On the part N there is a boss 30 provided with a pin whichengages a recess in the bottom of the dirt receptacle 3|.

A hollow part 32, preferably of sheet metal, is rigidly attached to thetubular handle 29, and is so formed that when the dirt receptacle 3| isset against the opening on its underside it will be practicallyair-tight there. At its upper edge it is provided with means ofattaching thereto a tubular' filter sleeve of fabric 33 which surroundsthe handle 29, and is of such diameter as to give the requiredair-filter volume depending upon the capacity of the motor suction-unitused. The aforesaid part 32 is so formed on its under-face that itreceives and holds the dirt receptacle 3 in an air-tight manner. Thedirt receptacle 3| may be tightly drawn up against the part 32 by meansof a suitable latching means 34 as illustrated in Fig. l.

At a suitable point on the upper end of the tubular handle 29 is ahousing part 35, preferably of stamped sheet metal, which is shownrigidly attached to the handle and provided at its lower and outer rimwith means for attaching the fabric sleeve 33 thereto in similar mannerto that on the part 32.

The hollow handle member 29 is provided with ports at 36 whereby all theair from the fan is defiected outwardly into the fabric sleeve 33 from15 which point it moves downwardly carrying the dirt with it as the airescapes through the filter. The result of this venting from the handleat the top of the filter sleeve is that the dirt travels downwardly bygravity into the dirt-receptacle 3| in the same direction as the air. Asuitable solid hand-grip 31 is provided set into the upper end of thetubular handle as shown in Fig. 1. A latch 38 on the part II enables thelatching of the filter handle in a vertical position to themotor-housing i when the cleaner is not in use.

It will be noted that the side of the detachable dirt receptacle 3| isformed at 3 a (Fig. 2) with a re-entrant angle which straddles theadjacent dirt-laden air duct 29 when the receptacle is in place, saidduct 29 being also part of the operating handle of the cleaner in theparticular illustrative device. The re-entrant angled dirt receptaclehas increased capacity andat the same time reduces the diameter of thecleaner at this point.

It will be seen that the described improvements enable efiicientseparation of the dirt from the dirt-laden air and its collection in aproperlylocated maximum size detachable dirt-receptacle trically or atone side through the bottom of the tubular filter and thencesubstantially axially through the filter and out through its upper end;a closure for the upper end of said tubular handle; means to deliverdirt laden air into the lower end 01 said tubular handle and out throughan opening at its upper end into the upper end 01 the filter; and a dirtreceptacle detachably supported under the filter with open mouth at thebottom of the filter in communication with an opening through saidbottom.

2. In a vacuum cleaner, the combination of a tubular filter; a tubularhandle extending up through the tubular filter and out of its upper end;means to deliver dirt laden air into the lower end of the handle memberand out through a port therein at its upper end into the upper end ofsaid filter; a. closure for the bore of said tubular handle above saidport; and. a nd-grip at the upper end of said handle beyond he filter.

3. In a vacuum cleaner, thecombination with a motor suction floor-unitof a tubular handle pivoted to said floor unit and arranged to receiveup through the handle the dirt laden air from said unit; a tubularfilter through which the tubular handle extends, the tubular handle having a port for delivering the dirt laden air into the upper end of saidfilter; a closure for the bore of said tubular handle above said port; ahand-grip at the upper end of said handle beyond the filter; a dirtreceptacle detachably supported under the filter with open mouth at thebottom of the filter in communication with an opening through saidbottom.

4. In a vacuum cleaner, the combination of a tubular filtenmeans todeliver dirt-laden air into the filter comprising a conduit deliveringup through the bottom-end of the tubular filter, and an open-moutheddirt receptacle detachably supported under the filter adjacent saidconduit with its mouth 'in communication with the bottom opening of thetubular filter, the side 01' the dirt receptacle adjacent the conduitbeing formed with a re-entrant angle which straddles the conduit whenthe receptacle is in place.

5. In a vacuum cleaner, the combination of a motor-driven suction-unitand related vacuumcleaner nozzle, a handle connected with saidsuction-unit for operating it over the surface to be cleaned, a tubularfilter connected with said suction unit and surrounding said handle, andan open-mouthed dirt receptacle detachably supported under the filteradjacent said handle with its mouth in communication with the bottomopening of the tubular filter, the side of the dirt receptacle adjacentthe handle being formed with a re-entran't angle which straddles thehandle when the receptacle is in place.

WARD LEATHERS.

